CN105529125A - Magnetic sheet - Google Patents
Magnetic sheet Download PDFInfo
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- CN105529125A CN105529125A CN201510664777.2A CN201510664777A CN105529125A CN 105529125 A CN105529125 A CN 105529125A CN 201510664777 A CN201510664777 A CN 201510664777A CN 105529125 A CN105529125 A CN 105529125A
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- soft magnetic
- magnetic sheet
- magnetic
- magnetosphere
- adhesive
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Abstract
The invention provides a magnetic sheet. The magnetic sheet comprises a magnetic layer comprising soft magnetic materials and adhesive. The soft magnetic materials are only formed by soft magnetic ferrite. The particle size of the soft magnetic ferrite is 1 [um]-10 [mu]m.
Description
Technical field
The present invention relates to a kind of magnetic sheet.
The application to the Patent 2014-214359 CLAIM OF PRIORITY of Japanese publication, here cites its content based on October 21st, 2014.
Background technology
For example, the magnetic sheet with unmagnetized kicker magnet layer is widely used in arranging the purposes such as blank on existing wall.Specifically, there will be a known the flexible magnetic sheet being such as provided with white vinyl chloride film on the surface of the kicker magnet layer be made up of the plastic plate or iron foil that mix iron powder.Wall arranges this magnetic sheet by adhesive etc., thus can the magnetic item such as magnetic magnet from the teeth outwards.Further, can also be used as can remember with blank the blank write device and write word or wipe word etc.
As the magnetic material of magnetic sheet, the synthetic resin material such as Magnaglo and vinyl chloride that there will be a known the metal powders such as such as mixing iron powder make tablet, use antirust zinc-plated iron foil (JP 2010-262130 publication).
By using the metal powders such as iron powder in magnetic sheet, thus obtain excellent magnetic absorption characteristic.
But use the magnetic sheet of iron powder except problem of rustiness, also easily increase cost.Further, it is more difficult that the iron powder that particle diameter is little gets up as material processed.How many iron foils carrying out antirust treatment can suppress to generate iron rust.But because the iron foil carrying out antirust treatment is hard material, therefore there is the difficult problem of process.
Summary of the invention
The object of the present invention is to provide and there is enough magnetic absorption characteristics and high rust resistance, cost are low, material processed is easy to magnetic sheet.
The feature of magnetic sheet of the present invention is to have magnetosphere, and described magnetosphere contains soft magnetic material and adhesive, and described soft magnetic material is only made up of soft magnetic ferrite, and the particle diameter of described soft magnetic ferrite is 1 μm ~ 10 μm.
In magnetic sheet of the present invention, the filling rate of the soft magnetic ferrite in preferred described magnetosphere is 40 volume % ~ 80 volume %.
Preferably, described soft magnetic ferrite is Mn-Zn series soft magnetic ferrite.
Invention effect
Magnetic sheet of the present invention has enough magnetic absorption characteristics and high rust resistance, and cost is low, and is easy to carry out material processed.
Accompanying drawing explanation
Fig. 1 is the profile of the example representing magnetic sheet of the present invention;
Fig. 2 is the profile of another example representing magnetic sheet of the present invention.
Symbol description
10: magnetic sheet
12: magnetosphere
14: surface resin layer
16: adhesive layer
Embodiment
[the first execution mode]
Fig. 1 is the profile of the magnetic sheet 10 of an example of magnetic sheet of the present invention.
The magnetic sheet 10 of present embodiment is flexible sheets, comprising: magnetosphere 12; Surface resin layer 14, is located at the surface of magnetosphere 12; And adhesive layer 16, be located at the back side of magnetosphere 12.
(magnetosphere)
Magnetosphere 12 is the layers containing soft magnetic material and adhesive.
< soft magnetic material >
In magnetic sheet 10, the soft magnetic material contained in magnetosphere 12 is only made up of soft magnetic ferrite.Thus suppress magnetic sheet 10 to produce iron rust.And cost is low compared with using the situation of iron powder in soft magnetic material, and material is easy to process.
Soft magnetic ferrite can be enumerated as Mn-Zn series soft magnetic ferrite, Ni-Zn series soft magnetic ferrite, Mg-Zn series soft magnetic ferrite etc.Wherein, from initial permeability and cost consideration, preferred Mn-Zn series soft magnetic ferrite.In addition, consider from magnetic absorption characteristic, preferred Ni-Zn series soft magnetic ferrite.
The soft magnetic ferrite that magnetosphere 12 contains can be a kind of, also can be two or more.
Preferably, magnetosphere 12 fills granular soft magnetic ferrite.
The particle diameter of soft magnetic ferrite is 1 μm ~ 10 μm, preferably 2 μm ~ 5 μm.When the particle diameter of above-mentioned soft magnetic ferrite is more than lower limit, can mediate in adhesive with high fill-ratio.When the particle diameter of above-mentioned soft magnetic ferrite is below higher limit, even if the filling rate improving soft magnetic ferrite also well can keep dimensional stability and the good appearance of sheet material.Consequently be easy to obtain magnetic absorption characteristic, dimensional stability and good appearance and the magnetic sheet deposited.
The particle diameter of soft magnetic ferrite is measured by following methods.
Determination object (powder of soft magnetic ferrite) is put in the organic liquid such as water or ethanol, and in the hyperacoustic state applying about 35kHz ~ 40kHz, carries out the dispersion treatment of about 2 minutes and modulate dispersion liquid.The amount of the shot-like particle in dispersion liquid to be the laser-transmitting rate (exporting the ratio of light quantity relative to incident light quantity) of this dispersion liquid be 70% ~ 95% amount.Then, by the laser light scattering of MICROTRAC Particle Size Analyzer, this dispersion liquid is measured to particle diameter (D1, D2, D3 of each shot-like particle ...) and each particle diameter there is quantity (N1, N2, N3 ...) (particle diameter (D) of each shot-like particle measures spheroid equivalent diameter according to MICROTRAC Particle Size Analyzer automatically to the shot-like particle of various shape).Based on quantity (N) and each particle diameter (D) of each particle existed in the visual field, calculate average grain diameter by following formula (1).
Average grain diameter=(∑ ND
3/ ∑ N)
1/3(1)
The filling rate preferably 40 volume % ~ 80 volume % of the soft magnetic ferrite in magnetosphere 12, more preferably 50 volume % ~ 70 volume %.When the filling rate of above-mentioned soft magnetic ferrite is more than above-mentioned lower limit, even if magnetosphere is not also easy to containing iron powder the magnetic sheet obtaining magnetic absorption excellent.When the filling rate of above-mentioned soft magnetic ferrite is below above-mentioned higher limit, formability is good.
In addition, the filling rate of the soft magnetic ferrite in magnetosphere refers to the ratio of the cumulative volume of soft magnetic ferrite relative to magnetospheric cumulative volume.
< adhesive >
Adhesive can use known for the magnetospheric adhesive of magnetic sheet.Can enumerate as rubber (synthetic rubber such as natural rubber, acrylic rubber), resin (haloflex etc.) etc.
The adhesive that magnetosphere 12 contains can be a kind of, also can be two or more.
The content preferably 20 volume % ~ 60 volume % of the adhesive in magnetosphere 12 (100 volume %), more preferably 30 volume % ~ 50 volume %.When the content of above-mentioned adhesive is more than lower limit, be easy to flaking.When the content of above-mentioned adhesive is below higher limit, be easy to the magnetic sheet obtaining magnetic absorption excellent.
Magnetosphere 12 can also contain additive in the scope not damaging effect of the present invention.
Additive can be enumerated as ultra-violet absorber, light stabilizer, antioxidant, plasticizer, colouring agent, lubricant, processing aid etc.
Additive can be used alone one, also can be used in combination two or more.
Preferred 0.1mm ~ the 1mm of thickness of magnetosphere 12, more preferably 0.2mm ~ 0.8mm.When the thickness of magnetosphere 12 is more than lower limit, can with enough absorption affinities absorption magnetite.When the thickness of magnetosphere 12 is below higher limit, be easy to construction on wall etc.
(surface resin layer)
The material forming surface resin layer 14 can be enumerated as polyvinyl chloride, fluorine resin, PETG, polypropylene etc.Wherein, consider from being easy to the coloring that pigment etc. carries out, preferred polyvinyl chloride.Write ink consideration from being easy to erasing note with eraser, preferably select from PETG, fluorine resin.
Such as, during as blank use magnetic sheet 10, in surface resin layer 14, hybrid pigment (titanium oxide, zinc oxide etc.) etc. become white.
Preferred 0.1mm ~ the 0.5mm of thickness of surface resin layer 14, more preferably 0.1mm ~ 0.3mm.When the thickness of surface resin layer 14 is more than lower limit, fully can hide magnetospheric color.When the thickness of surface resin layer 14 is below higher limit, do not hinder the absorption affinity of magnetite.
The bonding of magnetosphere 12 and surface resin layer 14, as may be undertaken by heat lamination, extruded lamination, also can use adhesive or bonding agent.Suitably can select according to the kind of each layer.
(adhesive layer)
As the material of the adhesive layer 16 used for the formation of arranging magnetic sheet 10 at existing wall, door, window or furniture etc., such as, when using interim magnetic sheet, can enumerate by the adhesive with removable, on the surface micro-valleys and circular at least one, the sucker sheet that forms of the elastomer of the microspike such as polygonal ring shape.
Preferred 0.1mm ~ the 3mm of thickness of adhesive layer 16, more preferably 0.5mm ~ 2mm.When the thickness of adhesive layer 16 is more than lower limit, can at stable installation magnetic sheets 10 such as walls.When the thickness of adhesive layer 16 is below higher limit, can easily process magnetic sheet 10, save space.
The magnetic permeability of magnetic sheet 10 preferably 5 ~ 30, more preferably 10 ~ 25.When the magnetic permeability of magnetic sheet 10 is in described scope, magnetic absorption excellent.
(manufacture method)
Be not particularly limited the manufacture method of magnetic sheet 10, except only using soft magnetic ferrite as soft magnetic material, known method can be adopted.The method shown in face can be listed below.
For the composition of the soft magnetic ferrite be mixed with as soft magnetic material and adhesive, carry out mixing and pulverize, being prolonged by roll-in and carry out flaking.Then carry out magnetization by magnetizing assembly and form magnetosphere 12.Formed the resin sheet (PVC sheets etc.) of surface resin layer 14 by dry lamination method lamination in the surface of the magnetosphere 12 obtained.Then, by the rear side lamination sucker sheet of dry lamination method in magnetosphere 12.Then, form adhesive layer 16 and become magnetic sheet 10.
[the second execution mode]
Fig. 2 is the profile of the magnetic sheet 20 in another execution mode of magnetic sheet of the present invention.
The magnetic sheet 20 of present embodiment is flexible sheets, comprising: magnetosphere 22; Surface resin layer 24, is located at the surface of magnetosphere 22; And inner covering 26, be located at the back side of magnetosphere 22.
Magnetosphere 22 can use the material identical with above-mentioned magnetosphere 12.
(surface resin layer)
Surface resin layer 24 is made up of superficial layer 241 and decorative layer 242.Magnetosphere 22 is provided with decorative layer 242, and decorative layer 242 is provided with superficial layer 241.
The material forming superficial layer 241 can be enumerated as polyvinyl chloride, fluorine resin, PETG, polypropylene etc.Wherein, write ink consideration from being easy to erasing note with eraser, preferably select from PETG, fluorine resin.Superficial layer 241 has at least a part transparent, to pass through superficial layer 241 visual perception decorative layer 242.
Preferred 0.01mm ~ the 0.5mm of thickness of superficial layer 241, more preferably 0.02mm ~ 0.2mm.When the thickness of superficial layer 241 is more than lower limit, the flatness on surface is good.When the thickness of superficial layer 241 is below higher limit, do not hinder the absorption affinity of magnetite.
The material forming decorative layer 242 can be enumerated as polyvinyl chloride, polyester, polypropylene etc.Wherein, consider from being easy to the coloring that pigment etc. carries out, preferred polyvinyl chloride.
Such as, during as blank use magnetic sheet 20, in decorative layer 242, hybrid pigment (titanium oxide, zinc oxide etc.) etc. become white.
Preferred 0.05mm ~ the 0.5mm of thickness of decorative layer 242, more preferably 0.1mm ~ 0.3mm.When the thickness of decorative layer 242 is more than lower limit, fully can hide magnetospheric color.When the thickness of decorative layer 242 is below higher limit, do not hinder the absorption affinity of magnetite.
Such as, when using magnetic sheet 20 as projection screen, in superficial layer 241, can give light reflectivity high concavo-convex.This surface resin layer 24 is such as commercially available as " transparency " (General Corporation's manufacture).
Surface resin layer 24 can also contain additive in the scope not damaging effect of the present invention.
Additive can be enumerated as ultra-violet absorber, light stabilizer, antioxidant, plasticizer, colouring agent, lubricant, processing aid etc.
Additive can be used alone one, also can be used in combination two or more.
The bonding of superficial layer 241 and decorative layer 242, as may be undertaken by heat lamination, extruded lamination, also can use adhesive.Suitably can select according to the kind of each layer of bonding.
The thickness of adhesive preferably 1 μm ~ 10 μm, more preferably 3 μm ~ 7 μm.When the thickness of adhesive is more than lower limit, Absorbable organic halogens ground adhesive surface layer 241 and decorative layer 242.When the thickness of adhesive is below higher limit, do not hinder magnetic adsorptive power.
The bonding of magnetosphere 22 and surface resin layer 24, as may be undertaken by heat lamination, extruded lamination, also can use adhesive or bonding agent.Suitably can select according to the kind of each layer.
(inner covering)
Inner covering 26 is located at the rear side of magnetosphere 22, its object is to improve the process easiness of magnetic sheet 20, wall applicability, wall arrange after sense of touch etc.Inner covering 26 has anti-flammability or non-flame properties fibrous mat, fabric, knitted fabric, nonwoven fabrics etc. by such as fire-retardant polyester fiber, glass fibre, carbon fiber etc. and forms.
By being provided with inner covering 26, when wall arranges magnetic sheet 20, if wall substrate is wood based panel or plasterboard, adhesive that is inexpensive and the gelatinized corn starch class of formaldehyde not containing organic solvent or room air syndrome inducement can be used.Even and if wall substrate is metallic plate, when arranging magnetic sheet 20 on the whole, the rubber adhesive of inexpensive easy acquisition can be selected.And because the wall after arranging magnetic sheet 20 has suitable elasticity, time therefore as blank use magnetic sheet 20, tireless effect in one's hands can be obtained.
Preferred 1mm ~ the 10mm of thickness of inner covering 26, more preferably 3mm ~ 7mm.When the thickness of inner covering 26 is more than lower limit, can more stably at middle installation magnetic sheets 20 such as walls.When the thickness of inner covering 26 is below higher limit, easy to operate.
The bonding of inner covering 26 and surface resin layer 24, as may be undertaken by heat lamination, extruded lamination, also can use adhesive or bonding agent.Suitably can select according to the kind of each layer.
[action effect]
Magnetic sheet of the present invention described above, has enough magnetic absorption characteristics.
Further, because magnetic sheet of the present invention only uses soft magnetic ferrite as soft magnetic material, therefore compared to the situation using iron powder in soft magnetic material, rust-preventing characteristic is more excellent.And owing to not using iron powder, therefore cost is low, and the process of material is also easy.
In addition, magnetic sheet of the present invention is not limited to above-mentioned magnetic sheet 10.
Such as, when being installed on wall by adhesive at the scene, when being arranged on wall etc. by screw, two-sided tape, magnetic sheet of the present invention can also be the magnetic sheet that the magnetospheric back side does not have adhesive layer.
Further, magnetic sheet of the present invention can also be the magnetic sheet that magnetospheric surface does not have surface resin layer.
Embodiment
Below, by embodiment, the present invention is described in detail, but the invention is not restricted to following record.
[rust-preventing characteristic evaluation]
As sample, from magnetic sheet, cut out the quadrangle of 5cm × 5cm.This sample is placed 1 time-of-week in the atmospheric environment of 60 DEG C of temperature, 90%RH relative humidity.Then the state of visual confirmatory sample, evaluates the rust-preventing characteristic of magnetic sheet.
Evaluate according to following standard.
Good: not get rusty.
Difference: get rusty
[magnetic permeability]
Magnetic sheet is struck out the ring-type of multiple external diameter 20mm, internal diameter 9mm, and the ring after lamination punching press obtains the ring bodies that thickness is about 10mm.30 circle enamelled wires are wound around to this ring bodies, make the both ends of enamelled wire connect LCR instrument (Agilent company manufactures, E4980A), measure toroidal effective self-inductance.Frequency during mensuration is 100kHz.Then effective permeability μ is obtained by following formula
e.
μ
e＝πDL/(n
2Aμ
0)
D: average diameter=(external diameter+internal diameter)/2 of ring bodies
L: toroidal inductance (measured value)
N: the number of turns=30
A: cross-sectional area=(external diameter-internal diameter) × t/2 of ring bodies
T: the height (thickness) of ring bodies
μ
0＝4π×10
-7(H/m)
[embodiment 1]
Mix and the adhesive haloflex of the soft magnetic material Mn-Zn series soft magnetic ferrite A (particle diameter 2 μm) of mixing 63 volume % and 37 volume % (Showa electrician company manufactures, chlorinity 32 quality %), pulverize.Then carry out roll-in to prolong, obtain the magnetic sheet that magnetic layer thickness is only 0.5mm.
[embodiment 2]
Except the soft magnetic material Mn-Zn series soft magnetic ferrite B (particle diameter 5 μm) of mixing 63 volume % and adhesive haloflex (the Showa electrician company manufacture of 37 volume %, chlorinity 32 quality %) outside, carry out the operation identical with embodiment 1 and obtain magnetic sheet.
[embodiment 3]
Except the soft magnetic material Mn-Zn series soft magnetic ferrite B (particle diameter 5 μm) of mixing 75 volume % and adhesive haloflex (the Showa electrician company manufacture of 25 volume %, chlorinity 32 quality %) outside, carry out the operation identical with embodiment 1 and obtain magnetic sheet.
[comparative example 1]
Except adhesive haloflex (the Showa electrician company manufacture of the soft magnetic material Mn-Zn series soft magnetic ferrite A (particle diameter 2 μm) of mixing 60 volume %, the iron powder of 5 volume % and 35 volume %, chlorinity 32 quality %) outside, carry out the operation identical with embodiment 1 and obtain magnetic sheet.
[comparative example 2]
Except the soft magnetic material Mn-Zn series soft magnetic ferrite C (particle diameter 15 μm) of mixing 60 volume % and adhesive haloflex (the Showa electrician company manufacture of 40 volume %, chlorinity 32 quality %) outside, carry out the operation identical with embodiment 1 and wish to get magnetic sheet.But, disperse due to own wt, can sheet be pressed into.
The evaluation result of embodiment and comparative example is as shown in table 1.
"○" in table 1 represents " good ", and "×" represents " poor ".
Table 1
As shown in table 1, only use the magnetic permeability of the magnetic sheet in embodiment 1 to the embodiment 3 of Mn-Zn series soft magnetic ferrite high as soft magnetic material, have enough magnetic absorption characteristics, and also do not find iron rust, rust-preventing characteristic is excellent.Although the magnetic sheet magnetic permeability in embodiment 3 is high especially, quality or the elasticity of flexure are also large, and Comparatively speaking sheet material process is more difficult.
On the other hand, add the magnetic sheet in the comparative example 1 that iron powder uses in as the Mn-Zn series soft magnetic ferrite of soft magnetic material, although have enough magnetic absorption characteristics, find iron rust.
Above, describe the preferred embodiments of the present invention, but the invention is not restricted to above-described embodiment.The interpolation of structure, omission, replacement and other changes can be carried out without departing from the spirit and scope of the present invention.The present invention can't help above-mentioned explanation limit, only limited by appended right.
Claims (3)
1. a magnetic sheet, is characterized in that,
Described magnetic sheet has magnetosphere, and described magnetosphere contains soft magnetic material and adhesive,
Described soft magnetic material is only made up of soft magnetic ferrite,
The particle diameter of described soft magnetic ferrite is 1 μm ~ 10 μm.
2. magnetic sheet according to claim 1, is characterized in that, the filling rate of the soft magnetic ferrite in described magnetosphere is 40 volume % ~ 80 volume %.
3. magnetic sheet according to claim 1 and 2, is characterized in that, described soft magnetic ferrite is Mn-Zn series soft magnetic ferrite.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-214359 | 2014-10-21 | ||
| JP2014214359A JP6532001B2 (en) | 2014-10-21 | 2014-10-21 | Magnetic sheet for whiteboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105529125A true CN105529125A (en) | 2016-04-27 |
Family
ID=55771292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510664777.2A Pending CN105529125A (en) | 2014-10-21 | 2015-10-15 | Magnetic sheet |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6532001B2 (en) |
| CN (1) | CN105529125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908602A (en) * | 2021-01-27 | 2021-06-04 | 江门江益磁材有限公司 | High-hardness and high-toughness rubber magnet and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021093465A (en) * | 2019-12-11 | 2021-06-17 | Tdk株式会社 | Magnetic sheet, and coil module including the magnetic sheet, and non-contact power supply device |
| CN116533297B (en) * | 2023-05-25 | 2023-10-17 | 广东鑫亿帆材料科技有限公司 | Production and manufacturing process of flame-retardant magnetic attraction film |
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| CN1032641A (en) * | 1987-10-17 | 1989-05-03 | 周宗正 | Composite magnetized plastic sheet and manufacturing thereof |
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| CN101069461A (en) * | 2004-12-03 | 2007-11-07 | 新田股份有限公司 | Electromagnetic interference suppressor, antenna device and electronic information transmitting apparatus |
| JP2013109827A (en) * | 2013-03-11 | 2013-06-06 | Hitachi Maxell Ltd | Magnetic recording medium |
| CN103833340A (en) * | 2012-11-27 | 2014-06-04 | 比亚迪股份有限公司 | Slurry for NFC (Near Field Communication) magnetic sheet and NFC magnetic sheet |
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| JPS55146797A (en) * | 1979-05-02 | 1980-11-15 | Taiyo Seiko Kk | Highly erasable whiteboard |
| JP2872224B2 (en) * | 1991-07-25 | 1999-03-17 | 戸田工業株式会社 | Coercive molding |
| JP2000003136A (en) * | 1998-06-15 | 2000-01-07 | Maguekkusu:Kk | Display body |
| JP2000228304A (en) * | 1999-02-09 | 2000-08-15 | C I Kasei Co Ltd | Flexible magnetic sheet having heat resistance |
| JP2002355544A (en) * | 2001-05-30 | 2002-12-10 | Tdk Corp | Method of producing spherical ceramic powder, spherical ceramic powder, and composite material |
| JP4626413B2 (en) * | 2005-06-14 | 2011-02-09 | 株式会社村田製作所 | Composite magnetic material, coil antenna structure, and portable communication terminal |
| JP2010262130A (en) * | 2009-05-07 | 2010-11-18 | Taiyo Kk | Sticking method of wall surface display plate, and wall surface displayer |
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2014
- 2014-10-21 JP JP2014214359A patent/JP6532001B2/en active Active
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2015
- 2015-10-15 CN CN201510664777.2A patent/CN105529125A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032641A (en) * | 1987-10-17 | 1989-05-03 | 周宗正 | Composite magnetized plastic sheet and manufacturing thereof |
| CN2064306U (en) * | 1989-11-23 | 1990-10-24 | 唐中文 | Magnetic showning face and system thereof |
| CN101069461A (en) * | 2004-12-03 | 2007-11-07 | 新田股份有限公司 | Electromagnetic interference suppressor, antenna device and electronic information transmitting apparatus |
| CN103833340A (en) * | 2012-11-27 | 2014-06-04 | 比亚迪股份有限公司 | Slurry for NFC (Near Field Communication) magnetic sheet and NFC magnetic sheet |
| JP2013109827A (en) * | 2013-03-11 | 2013-06-06 | Hitachi Maxell Ltd | Magnetic recording medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908602A (en) * | 2021-01-27 | 2021-06-04 | 江门江益磁材有限公司 | High-hardness and high-toughness rubber magnet and preparation method thereof |
| CN112908602B (en) * | 2021-01-27 | 2023-01-24 | 江门江益磁材有限公司 | High-hardness and high-toughness rubber magnet and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016082149A (en) | 2016-05-16 |
| JP6532001B2 (en) | 2019-06-19 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171117 Address after: Japan's Osaka Osaka Shibei District Mei Tian three chome 1 No. 3 Applicant after: Japan's Takiron Xiai Corporation Address before: Dong Jing Applicant before: C. I. Kasei Co., Ltd. |
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Application publication date: 20160427 |
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